There's another pieces of flower piece that I ranked higher because it seemed to be more evocative by having the "broken flower" pieces all alone in the corner of a "white space." This one doesn't seem to evoke the same sense of loss that the other does.
Just a touch over exposed. I am not sure if you meant to do it on purpose, but I would actally like to see a bit more of the edge of the petals where the white meets white.... I have an image that I'm currently working on fixing a similar problem with. In yours, it looks like there is enough information there that you could probably make the adjustment in photoshop CS using the Image> Adjustments> Shadow/Highlight, as suggested in this turorial: